Brazilian scientists will next month begin clinical tests on humans of a new vaccine against dengue fever, a leading Sao Paulo-based biomedical research institute said Thursday. The vaccine is being developed to combat the four closely related...

Dengue fever has surged in the central Philippines, infecting more than 1,800 people and killing at least ten, a provincial official said Saturday. The number of people struck down by the mosquito-borne disease in the central province of Iloilo...